Remove -DUSE_GLSL_OPTIMIZER from Visual Studio cmake arguments
Move Opus from client to it's own CMake target
Switch Minizip to native 64-bit fopen(), ftello(), fseeko().
Merge pull request #263 from bentley/minizip64

Switch Minizip to native 64-bit fopen(), ftello(), fseeko().
OpenBSD doesn't use librt. Don't link against it there.
Add OpenBSD to various #ifdefs.
Change the default value of pmove_accurate to 1
Switch to retaining expired bans for a day by default.
Record warnings in the ban log.

Adjust /showbans, /listplayers and connection checks accordingly.
Admins may see 'W' in listplayers output.
Merge branch 'master' into flyyouhigh